I'll bring 3 Day Prime week 11 Meyers for you to try: a C-Mount Trioplan 75/2.8 (1935), a Trioplan 73/3.5 (1936; Balda Baldax) and a Filmostar 75mm projector lens (also pre war); The C-mount has a helicoid, for the other two I'll bring focusing gear. All for E-mount though the Trioplan 73 could be used on A-mount if you bring a M42 > A-mount adapter.

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